If you complete "quests" that more or less amount to trying out basic Steam features (explore your discovery queue, mark a review as helpful, and so on), you can unlock digital stickers themed after various games such as BioShock, Undertale and Octodad. You can then array them as you please across a variety of backgrounds to tell your own little stories, which you can display on your Steam profile page. Cute! Damn near wholesome, in fact.

But this is Steam, where innocence goes to die and gain very strong opinions on anime sex games, in that order. So naturally, people are using Steam Summer Sale stickers to make video game characters do the fuck. Redditor pitogiro kicked off a thread that turned into a journey: